package day03;

public class IfElseDemo {
    public static void main(String[] args) {
        //1)满500打八折,不满500打九折
        double price = 200.0;
        if(price>=500){
            price *= 0.8;
        }else{
            price *= 0.9;
        }
        System.out.println("金额为"+price);

        double score = 990;
        if(score>=0 && score<=100){
            System.out.println(score+"是合法");
        }else{
            System.out.println(score+"是不合法");
        }
    }
}
